Sound energy density

Sound measurements
Sound measurements
Characteristic	Symbols
Sound pressure	p, SPL, LPA
Particle velocity	v, SVL
Particle displacement	δ
Sound intensity	I, SIL
Sound power	P, SWL, LWA
Sound energy	W
Sound energy density	w
Sound exposure	E, SEL
Acoustic impedance	Z
Audio frequency	AF
Transmission loss	TL
	v; t; e;

Sound energy density or sound density is the sound energy per unit volume. The SI unit of sound energy density is the pascal (Pa), which is 1 kg⋅m⁻¹⋅s⁻² in SI base units or 1 joule per cubic metre (J/m³).^[1]^{: Section 2.3.4: Derived units, Table 4}

^ Newell, David B; Tiesinga, Eite, eds. (2019). The international system of units (SI) (PDF) (Report). Gaithersburg, MD: National Institute of Standards and Technology. doi:10.6028/nist.sp.330-2019.

[SIUnits-1] Newell, David B; Tiesinga, Eite, eds. (2019). The international system of units (SI) (PDF) (Report). Gaithersburg, MD: National Institute of Standards and Technology. doi:10.6028/nist.sp.330-2019.

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